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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "TimelineMarker.h"
#include "jsapi.h"
#include "js/Exception.h"
#include "mozilla/dom/ProfileTimelineMarkerBinding.h"
#include "nsContentUtils.h"
namespace mozilla {
TimelineMarker::TimelineMarker(const char* aName,
MarkerTracingType aTracingType,
MarkerStackRequest aStackRequest)
: AbstractTimelineMarker(aName, aTracingType) {
CaptureStackIfNecessary(aTracingType, aStackRequest);
}
TimelineMarker::TimelineMarker(const char* aName, const TimeStamp& aTime,
MarkerTracingType aTracingType,
MarkerStackRequest aStackRequest)
: AbstractTimelineMarker(aName, aTime, aTracingType) {
CaptureStackIfNecessary(aTracingType, aStackRequest);
}
void TimelineMarker::AddDetails(JSContext* aCx,
dom::ProfileTimelineMarker& aMarker) {
if (GetTracingType() == MarkerTracingType::START) {
aMarker.mProcessType.Construct(GetProcessType());
aMarker.mIsOffMainThread.Construct(IsOffMainThread());
}
}
JSObject* TimelineMarker::GetStack() {
if (mStackTrace.initialized()) {
return mStackTrace;
}
return nullptr;
}
void TimelineMarker::CaptureStack() {
JSContext* ctx = nsContentUtils::GetCurrentJSContext();
if (ctx) {
JS::Rooted<JSObject*> stack(ctx);
if (JS::CaptureCurrentStack(ctx, &stack)) {
mStackTrace.init(ctx, stack.get());
} else {
JS_ClearPendingException(ctx);
}
}
}
void TimelineMarker::CaptureStackIfNecessary(MarkerTracingType aTracingType,
MarkerStackRequest aStackRequest) {
if ((aTracingType == MarkerTracingType::START ||
aTracingType == MarkerTracingType::TIMESTAMP) &&
aStackRequest != MarkerStackRequest::NO_STACK) {
CaptureStack();
}
}
} // namespace mozilla
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